Answer:
Common good
Explanation:
The decline of the Alaska king crab fishery would be explained using the concept of common good.
Now to provide further explanation on what a common good is:
A common good is a good that is beneficial to all persons. Such a good serves everybody as there is no exclusion or rivalry. One major problem with common goods are a depletion of resources. This is what happened when the fishery crashed due to fishery because everyone is entitled to it and uses it, the problem of overfishing was bound to happen.